Death ofIrving Singer

BOSTON (AP) — Irving Singer, a philosopher, author of nearly two dozen books and professor at the Massachusetts Institute of Technology, has died at age 89.

He died on Feb. 1 after a period of declining health, his daughter Emily Singer confirmed on Monday.

Singer, whose academic career spanned 65 years, served on the MIT faculty in the Department of Philosophy and Linguistics from 1958 until his retirement in 2013. He was the author of 21 books in the field of humanistic...